CH168644A
(en )
1934-04-30
Building curtain wall construction.
FR816627A
(en )
1937-08-12
building element
DK58040C
(en )
1940-09-30
Building element for the formation of a sound-stopping and sound-absorbing building construction.
FR837937A
(en )
1939-02-23
Concrete pipe
FR807004A
(en )
1936-12-31
Brick or building element
FR830523A
(en )
1938-08-02
building element
FR835937A
(en )
1939-01-05
building element
DK65991C
(en )
1947-12-01
Method of Making Sound-Absorbing Sheets.
FR864487A
(en )
1941-04-28
construction element for buildings
DK57402C
(en )
1940-03-18
Procedure for Manufacturing Building Materials.
DK54911C
(en )
1938-06-27
Window construction for reinforced concrete buildings.
FR815957A
(en )
1937-07-27
building element
DK56694C
(en )
1939-09-18
Building stone.
FR784056A
(en )
1935-07-22
Decorative element forming a pipe and intended for the building
DK55090C
(en )
1938-08-15
Hollow Building Stone and Floor Separation Made of the Same.
DK58610C
(en )
1941-04-21
Sound-insulating and sound-absorbing, multi-layered panels for building use and methods for the manufacture of such panels.
DK60298C
(en )
1942-11-02
Sound-regulating and sound-insulating Wall or Ceiling construction.
DK63319C
(en )
1945-03-26
Procedure for Manufacturing Building Elements.
CH167411A
(en )
1934-02-28
Building block.
DK49608C
(en )
1934-12-03
Cast Building Element.
DK55764C
(en )
1939-01-30
Wall cladding of assembled Double Slabs.
DK57085C
(en )
1939-12-27
Procedure for Manufacturing Masonry.
GR6628B
(en )
1937-07-07
BUILDING INSULATION TILES.
FR876957A
(en )
1942-11-24
Joint-tight masonry
DK61280C
(en )
1943-08-30
Method and Sicentrifuge for the manufacture of starch.